THEORY: AN ŌTSUTSUKI STILL HIDES ON EARTH

Kaguya Ōtsutsuki's backstory reveals that the Divine Tree had already taken root on Earth long before her arrival. This suggests that another pair of Ōtsutsuki may have come to Earth before Kaguya and Isshiki to plant it. Following the typical Ōtsutsuki pattern—where one becomes the Ten-Tails' sacrifice and the other survives—it’s plausible that the surviving Ōtsutsuki is still hiding somewhere on Earth.

Adding to this mystery, the toads of Mount Myōboku, particularly the Great Toad Sage Gamamaru, exhibited advanced abilities even before Hagoromo spread ninshū. For example, Gamamaru was seen performing ninjutsu before chakra was formally introduced. This is peculiar, as jutsu cannot typically be performed using natural energy alone. Where did these powers come from?

Gamamaru also possesses a crystal ball known as the "Memory Stone," an artifact that allows him to observe all events throughout history. Strikingly, this ability is similar to Eida’s Senrigan, except the Memory Stone appears to lack limitations. Since Eida’s Senrigan is a Shinjutsu derived from Shibai Ōtsutsuki, could the Memory Stone share a similar origin?

Could it be that the hidden Ōtsutsuki granted the toads such tools or powers as part of a larger plan to manipulate history? Did this Ōtsutsuki use Gamamaru as a puppet to orchestrate Kaguya’s downfall and influence other so-called “divine interventions”?

These possibilities suggest that an unseen Ōtsutsuki may still be pulling the strings from the shadows, shaping Earth's history for their own agenda.